Abstract: In this paper, fig-pollinating wasp (Ceratosolen solmsi marchali) was collected from the fig Ficus hispida in the Xishuangbanna tropical area at different time to study the temporal dynamics of its population within a natural fig, and three foundresses were introduced to a single fig in different periods to know the temporal dynamics of the population size of the fig-pollinating wasp in controlled experiments. The results showed that the population sizes of the fig-pollinating wasp were varied in different years, months and days, and the numbers of female had a greater change than those of male. Some significant differences in the means of pollinators within a single fig were observed in different years and months, and the possible limiting factors were the development status of fig trees, climate, and non-pollinating fig wasp. But, there was no significant difference in the means of pollinators within a single fig in different days of a month, which was thought to be the adjustment of the vitality and lifespan of foundresses, and the figs of different spaces. This study could provide scientific basis for controlling experiments in the future.

Key words: Magnetic treatment, Saline-alkali stress, Peroxidase(POD), Isozyme